C#使用GET、POST請求獲取結果，這里以一個簡單的用戶登陸為例。
1、 使用GET請求獲取結果
1.1 創建LoginHandler.aspx處理頁面
protected void Page_Load(object sender, EventArgs e) { string result = ""; string userName = Request.QueryString["UserName"]; string password = Request.QueryString["Password"]; if (userName == "admin" && password == "123") { result = "登陸成功"; } else { result = "登陸失敗"; } Response.Write(result); } 1.2 編寫GET請求與獲取結果方法
/// <summary> /// GET請求與獲取結果 /// </summary> public static string HttpGet(string Url, string postDataStr) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr); request.Method = "GET"; request.ContentType = "text/html;charset=UTF-8"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); return retString; } 1.3 調用測試
static void Main(string[] args) { string url = "http://www.mystudy.cn/LoginHandler.aspx"; string data = "UserName=admin&Password=123"; string result = HttpGet(url, data); Console.WriteLine(result); Console.ReadLine(); } 2、 使用POST請求獲取結果
2.1 創建LoginHandler.aspx處理頁面
protected void Page_Load(object sender, EventArgs e) { string result = ""; string userName = Request.Form["UserName"]; string password = Request.Form["Password"]; if (userName == "admin" && password == "123") { result = "登陸成功"; } else { result = "登陸失敗"; } Response.Write(result); } 2.2 編寫POST請求與獲取結果方法
/// <summary> /// POST請求與獲取結果 /// </summary> public static string HttpPost(string Url, string postDataStr) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request.ContentLength = postDataStr.Length; StreamWriter writer = new StreamWriter(request.GetRequestStream(),Encoding.ASCII); writer.Write(postDataStr); writer.Flush(); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); string encoding = response.ContentEncoding; if (encoding == null || encoding.Length < 1) { encoding = "UTF-8"; //默認編碼 } StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding)); string retString = reader.ReadToEnd(); return retString; } 2.3 調用測試
static void Main(string[] args) { string url = "http://www.mystudy.cn/LoginHandler.aspx"; string data = "UserName=admin&Password=123"; string result = HttpPost(url, data); Console.WriteLine(result); Console.ReadLine(); } 以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網。
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